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Office Add-ins & VSTO

VSTO Excel: Fix COMException on Worksheet Activate

A COMException on Worksheet.Activate is a classic VSTO timing issue. Here's the reliable fix.

vsto excel office com

Nov 20, 2024 199

JavaScript & Web

Fix: Angular ExpressionChangedAfterItHasBeenCheckedError

One of Angular's most confusing errors. Here's what causes it and how to fix it properly.

angular typescript change-detection fix

Sep 3, 2024 270

Mobile Development

iOS Swift: Fix 'EXC_BAD_ACCESS' Crash on Background Thread UI Update

Updating UIKit from a background thread causes random crashes that are notoriously hard to reproduce. Here's the fix.

swift ios threading crash

May 2, 2024 275

Fix: ASP.NET Core CORS Policy Not Working in Production

A common gotcha when deploying ASP.NET Core apps — CORS works in dev but silently breaks in prod.

asp.net cors deployment fix

Mar 10, 2024 191